Fig. 6. Gbb is required for FMRF expression. (A) in situ hybridization of third
instar brain and ventral ganglia with a gbb probe. The arrows
indicate the NHO. (B-E) FMRF expression in (B) wild-type, (C)
gbb1/gbb4 hypomorph and (D)
gbb1/gbb2 null mutant animals. (E) Rescue of
FaRP expression in a gbb-null background by expression of Gbb using
the neuron specific elav>Gal4 driver (w;
P{UAS>gbb, w+}, gbb1/gbb2;
P{elav>Gal4, w+}/+), (F) Lack of FaRP rescue in a
gbb null background using the muscle specific G14>Gal4 driver to
express Gbb (w; P{UAS>gbb, w+},
gbb1/gbb2, P{G14>Gal4, w+}).
Scale bars: in A, 50 µm for A; in B, 100 µm for B-F Anterior towards the
left, dorsal views.